/* MacWave Docs —— 沿用官网配色与字形 */

:root {
    --bg: #0a1b3f;
    --panel: #1e2a4a;
    --panel-soft: rgba(255, 255, 255, 0.04);
    --line: rgba(255, 255, 255, 0.12);
    --text: #ffffff;
    --muted: #a0b0d0;
    --accent: #4a90e2;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    background-color: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--accent);
}

/* 只显示当前语言 */
.lang-zh [data-lang="en"],
.lang-en [data-lang="zh"] {
    display: none !important;
}

/* ========== 顶栏 ========== */
.topbar {
    position: sticky;
    top: 0;
    z-index: 30;
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 12px max(20px, calc((100vw - 1120px) / 2));
    background-color: rgba(10, 27, 63, 0.88);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--line);
}

.brand {
    display: flex;
    align-items: baseline;
    gap: 8px;
    font-weight: 700;
    font-size: 1.05rem;
    letter-spacing: 0.01em;
    text-decoration: none;
    color: var(--text);
    white-space: nowrap;
}

.brand .brand-mark {
    color: var(--accent);
}

.brand .brand-sub {
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--muted);
}

.topbar-spacer {
    flex: 1;
}

.lang-switch {
    display: flex;
    gap: 6px;
}

.lang-btn {
    appearance: none;
    border: 1px solid var(--line);
    background-color: rgba(255, 255, 255, 0.12);
    color: var(--text);
    font: inherit;
    font-size: 0.85rem;
    padding: 6px 14px;
    border-radius: 20px;
    cursor: pointer;
    white-space: nowrap;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.lang-btn:hover {
    background-color: rgba(255, 255, 255, 0.24);
}

.lang-btn.active {
    background-color: var(--text);
    color: var(--bg);
    border-color: var(--text);
}

/* ========== 布局 ========== */
.page {
    width: min(1120px, 100%);
    margin: 0 auto;
    padding: 40px 20px 80px;
}

.hero h1 {
    font-size: clamp(1.7rem, 4vw, 2.3rem);
    margin: 0 0 10px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--accent);
    display: inline-block;
}

.hero p {
    margin: 18px 0 0;
    color: var(--muted);
    font-size: 0.95rem;
    max-width: 760px;
}

/* ========== 路径栏 ========== */
.pathbar {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    margin: 34px 0 14px;
}

.crumbs {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 4px;
    font-size: 0.95rem;
    min-width: 0;
}

.crumb {
    appearance: none;
    border: 0;
    background: none;
    color: var(--text);
    font: inherit;
    padding: 3px 8px;
    border-radius: 8px;
    cursor: pointer;
    white-space: nowrap;
}

.crumb:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.crumb.is-current {
    color: var(--muted);
    cursor: default;
}

.crumb.is-current:hover {
    background: none;
}

.crumb-sep {
    color: rgba(255, 255, 255, 0.35);
}

.pathbar-spacer {
    flex: 1;
}

/* ========== 文件列表 ========== */
.list {
    border: 1px solid var(--line);
    border-radius: 14px;
    overflow: hidden;
    background-color: var(--panel-soft);
}

.row {
    display: grid;
    grid-template-columns: 30px minmax(0, 1fr) auto;
    align-items: center;
    gap: 14px;
    padding: 13px 18px;
    border-top: 1px solid var(--line);
}

.row:first-child {
    border-top: 0;
}

.row.is-dir,
.row.has-preview {
    cursor: pointer;
}

.row.is-dir:hover,
.row.has-preview:hover {
    background-color: rgba(255, 255, 255, 0.06);
}

.row-main {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
}

.icon {
    flex: none;
    width: 26px;
    height: 26px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 7px;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    border: 1px solid var(--line);
    background-color: rgba(255, 255, 255, 0.08);
    color: var(--muted);
}

.icon.dir {
    color: var(--text);
    background-color: rgba(74, 144, 226, 0.22);
    border-color: rgba(74, 144, 226, 0.45);
}

.icon.pdf {
    color: #ffb3b3;
    background-color: rgba(226, 74, 74, 0.16);
    border-color: rgba(226, 74, 74, 0.4);
}

.icon.md {
    color: #a8d5ff;
    background-color: rgba(74, 144, 226, 0.14);
}

.row-name {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 1rem;
}

.row-meta {
    color: var(--muted);
    font-size: 0.82rem;
    white-space: nowrap;
}

.row-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    justify-content: flex-end;
}

/* ========== 按钮 ========== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border: 1px solid transparent;
    border-radius: 20px;
    font: inherit;
    font-size: 0.85rem;
    font-weight: 600;
    padding: 7px 15px;
    text-decoration: none;
    cursor: pointer;
    white-space: nowrap;
    transition: transform 0.15s ease, background-color 0.2s ease, box-shadow 0.2s ease;
}

.btn-primary {
    background-color: var(--text);
    color: var(--bg);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(255, 255, 255, 0.18);
}

.btn-ghost {
    background-color: transparent;
    color: var(--text);
    border-color: var(--line);
}

.btn-ghost:hover {
    background-color: rgba(255, 255, 255, 0.12);
}

.btn-quiet {
    background-color: transparent;
    color: var(--muted);
    border-color: transparent;
    padding: 7px 10px;
}

.btn-quiet:hover {
    color: var(--text);
    background-color: rgba(255, 255, 255, 0.1);
}

/* ========== 状态提示 ========== */
.notice {
    margin: 0 0 14px;
    padding: 10px 14px;
    border-radius: 10px;
    font-size: 0.86rem;
    border: 1px solid rgba(226, 176, 74, 0.4);
    background-color: rgba(226, 176, 74, 0.1);
    color: #ffd98a;
}

.empty {
    padding: 40px 18px;
    text-align: center;
    color: var(--muted);
    font-size: 0.95rem;
}

/* ========== PDF 阅读器 ========== */
.viewer {
    position: fixed;
    inset: 0;
    z-index: 60;
    display: flex;
    flex-direction: column;
    background-color: rgba(6, 16, 38, 0.96);
    backdrop-filter: blur(6px);
}

.viewer[hidden] {
    display: none;
}

.viewer-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    border-bottom: 1px solid var(--line);
    background-color: rgba(10, 27, 63, 0.9);
}

.viewer-title {
    font-size: 0.95rem;
    font-weight: 600;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    min-width: 0;
}

.viewer-actions {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 8px;
    flex: none;
}

.viewer-frame {
    flex: 1;
    width: 100%;
    border: 0;
    background-color: #ffffff;
}

/* ========== 页脚 ========== */
.footer {
    margin-top: 46px;
    padding-top: 20px;
    border-top: 1px solid var(--line);
    color: var(--muted);
    font-size: 0.82rem;
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    align-items: center;
}

.footer a {
    color: var(--muted);
    text-decoration: none;
}

.footer a:hover {
    color: var(--text);
    text-decoration: underline;
}

/* ========== 窄屏 ========== */
@media (max-width: 640px) {
    .topbar {
        gap: 8px;
        padding: 10px 14px;
    }

    .brand {
        font-size: 0.95rem;
    }

    .brand-sub {
        display: none;
    }

    .lang-btn {
        padding: 5px 10px;
        font-size: 0.78rem;
    }

    .topbar .btn {
        padding: 5px 12px;
        font-size: 0.78rem;
    }

    .page {
        padding: 28px 16px 60px;
    }

    .row {
        grid-template-columns: 26px minmax(0, 1fr);
        grid-template-areas:
            "icon main"
            ".    actions";
        row-gap: 8px;
        padding: 12px 14px;
    }

    .row-main {
        grid-area: main;
        flex-wrap: wrap;
        row-gap: 2px;
    }

    .row-actions {
        grid-area: actions;
        justify-content: flex-start;
        flex-wrap: wrap;
    }

    .icon {
        grid-area: icon;
    }

    .row-meta {
        width: 100%;
    }

    .viewer-bar {
        flex-wrap: wrap;
        padding: 10px 14px;
    }

    .viewer-actions {
        width: 100%;
        margin-left: 0;
        justify-content: flex-end;
    }
}

/* 极窄屏：顶栏只留语言切换，仓库入口由页脚提供 */
@media (max-width: 430px) {
    #repo-link {
        display: none;
    }
}